64891820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{463513}}^1$

素因数の和:463529

約数の個数: 24

約数和(自身を含む): 155740704

約数和(自身を除く): 90848884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 463513, 927026, 1854052, 2317565, 3244591, 4635130, 6489182, 9270260, 12978364, 16222955, 32445910, 64891820]

約数ペア:

[(1, 64891820), (2, 32445910), (4, 16222955), (5, 12978364), (7, 9270260), (10, 6489182), (14, 4635130), (20, 3244591), (28, 2317565), (35, 1854052), (70, 927026), (140, 463513)]